Improvement in cotton-pickers



. J. GRIFFIN. COTTON PIGKER.

No. 31,596. v Patented Mar. 5, 1861.

UNITED STATES PATENT OFFICE.

JOHN GRIFFIN, OF LOUISVILLE, KENTUCKY IMPROVEMENT IN COTTON-PICKERS.

Specification forming part of Letters Patent No. 31,596, dated March 5, 1861.

To all whom it may concern.-

Be it known that I, J OHN GRIFFIN, of Louisville, in the county of Jefferson and State of Kentucky, haveinvented a new and Improved Cotton-Picker; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specitication, in which Figure l is a vertical central section of my invention; Fig. 2, a horizontal section of the or india-rubber tube, having springs a a attached at opposite points to its outer side, which springs have a tendency to keep the valve gently closed. The tube A is fitted within a tube, D, which is attached to an elastic or flexible tube, which conducts the cotton into the receiver. The tube D has a partition, b, in it to form a compartment, 0, which communicates with tube A by perforations d. The compartment ecommunicates, by means of a vent-pipe, 6, with a cylinder, E, which has two partitions, fg, in it, which form seats for a double valve, F, which is between them. The valve F is formed of two parts, h i, the part It being attached to a stem, G, which is a screw,

and is fitted in a female screw in a tube, H, to the inner end of which the part i of the valve is attached.

By turning the screw or stem G the distance between the parts ht may be regulated, and the capacity of the openings in the partitions f g regulated as desired.

The outer part of the cylinder E communicates with a suction-tube, I.

In using this device the operator graspsthe tube D, and in passing the end piece, B, from one boll to another draws back the stem G, so that the part hot the valve will strike its seat fand out off all communication between the tubes A I. and when the end piece is adjusted on or over a boll on a standing stalk the stem G is released and the valve opens under the suction, a head, j, on the tube H controlling the movement of the valve. This opening of the valve of course produces a suction in tube A, and the boil is forced through the valve 0, the boll having sufficient impetus given it to pass through the flexible conveying-tube'into the receiver.

By this invention a saving is effected in the power for producing the suction, as all communication is cut oil between the suction-tube I and tube A. when suctionis not required in the latter.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

The arrangement of the tubes A D, cylinder E, and valves 0 F, substantially as and for the purpose herein set forth.

M. M. LIVINGSTON,

G. W. OowrAU. 

